3 years ago

Someone mind helping out?

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

6 0

Answer:

15 ft

Step-by-step explanation:

Pythagoras formula for a triangle with a 90 degree angle :

a^2 + b^2 = c^2

c is the side opposite of the 90 degree angle. exactly or situation here.

=> 9^2 + 12^2 = x^2

=> 81 + 144 = x^2 = 225

=> x = sqrt(225) = 15

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